This was my first time to Bangkok and my favourite thing about it was Aster9 House. The house is located walking distance from BTS and the neighbourhood has many restaurant options. The room was impeccably clean as well.
Most importantly, the airbnb is run by one of the most kind and caring people I have ever met. Kanta and his mom genuinely care about the well-being and experience of travellers.
You want to book this place. Trust me.
Also, breakfast is top notch.👌🏻